﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

public interface InterfaceA
{
    void printCapitalLetter();
}
public interface InterfaceB
{
    void printLowercaseLetter();
}
public class Print : InterfaceA, InterfaceB
{

    public void printLowercaseLetter()
    {
        for (char i = 'a'; i <= 'z'; i++)
        {
            Console.Write(i + " ");
        }
    }
    public void printCapitalLetter()
    {
        for (char i = 'A'; i <= 'Z'; i++)
        {
            Console.Write(i + " ");
        }
        Console.WriteLine();
    }
}
class Program
{
    static void Main(string[] args)
    {
        InterfaceA a = new Print();
        a.printCapitalLetter();
        InterfaceB b = new Print();
        b.printLowercaseLetter();

    }
}